The width of a rectangle is 5x -5.5 feet and the length is 5.5x + 10 feet. Find the perimeter of the rectangle.
The perimeter of the rectangle is feet.

130ft

Step-by-step explanation:

5x -5.5 = -27.5

5x -5.5 = 27.5 + 10 = 37.5

27.5 x 2 = 55

27.5 + 10 = 37.5 x 2 = 75

55 + 75 = 130 ft

21x+9ft, since x has no value that I know of. Otherwise sub that number in for x and complete the equation.

Explanation: it’s a rectangle so the width and length are the same so just multiple the width and length by themselves add all like terms (x’s and numbers) you’ll get the answer.

134.4 centimeters

Step-by-step explanation:

This question is asking us for a missing leg on the triangle, lets call it x. Using the Pythagorean theorem (a²+b²=c²), we can figure out what value is missing (either a or b, they are interchangeable).

replace the values in the equation.

83²+x²=158²

get rid of the exponents.

6,889+ x² = 24,964.

subtract 6,889 from 24,964.

x²=18,075.

find the square root on both sides of the equation.

x=134.4432966.

I am assuming you want this rounded to the nearest tenth.

134.4 is your answer.

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